Summary
A path traversal vulnerability in the Aspose Importer & Exporter plugin for WordPress allows unauthenticated attackers to access files outside the intended download directory through an unsanitized file parameter. If the vulnerable download endpoint is reachable, attackers may read sensitive application files, including configuration data containing database credentials.
A path traversal vulnerability in the Aspose Importer & Exporter plugin for WordPress allows unauthenticated attackers to access files outside the intended download directory through an unsanitized file parameter. If the vulnerable download endpoint is reachable, attackers may read sensitive application files, including configuration data containing database credentials.
Affected context
This issue affects WordPress installations using Aspose Importer & Exporter versions before 3.0 where the download endpoint accepts a user-controlled file path without sufficient canonicalization or boundary enforcement. Risk is greatest when the endpoint is publicly reachable and the web server process can read sensitive files.
This issue affects WordPress installations using Aspose Importer & Exporter versions before 3.0 where the download endpoint accepts a user-controlled file path without sufficient canonicalization or boundary enforcement. Risk is greatest when the endpoint is publicly reachable and the web server process can read sensitive files.
Exploit preconditions
- Attack surface: Publicly accessible WordPress plugin download endpoint
- Required access: No authentication may be required
- Trigger point: Processing of the user-controlled
fileparameter - Why exploitation is possible: The requested path is not adequately normalized and restricted to the intended download location
- Attack surface: Publicly accessible WordPress plugin download endpoint
- Required access: No authentication may be required
- Trigger point: Processing of the user-controlled
fileparameter - Why exploitation is possible: The requested path is not adequately normalized and restricted to the intended download location
Why this happens
The vulnerability results from treating a client-supplied file path as trustworthy when selecting files for download. Without canonicalizing the path and verifying that the resolved target remains within an approved directory, traversal components can escape the intended filesystem boundary. This behavior maps to CWE-22: Improper Limitation of a Pathname to a Restricted Directory, commonly known as path traversal.
The vulnerability results from treating a client-supplied file path as trustworthy when selecting files for download. Without canonicalizing the path and verifying that the resolved target remains within an approved directory, traversal components can escape the intended filesystem boundary. This behavior maps to CWE-22: Improper Limitation of a Pathname to a Restricted Directory, commonly known as path traversal.
Potential impact
- Attackers may read application configuration files
- Database credentials and other secrets could be disclosed
- WordPress authentication material may be exposed
- Disclosure of source code or operational data could support follow-on attacks
- Sensitive files may be exposed to unauthenticated remote users
- Attackers may read application configuration files
- Database credentials and other secrets could be disclosed
- WordPress authentication material may be exposed
- Disclosure of source code or operational data could support follow-on attacks
- Sensitive files may be exposed to unauthenticated remote users
General mitigation guidance
Mitigation generally focuses on eliminating trust in client-supplied filesystem paths and enforcing a strict file access boundary.
Common defensive patterns include:
- Resolving and canonicalizing paths before access checks
- Allowing downloads only from a fixed server-side file identifier or allowlist
- Verifying that the resolved path remains within the intended directory
- Rejecting traversal syntax and encoded variants as an additional defense
- Restricting web-process filesystem permissions according to least privilege
- Keeping configuration secrets outside web-accessible or downloadable locations
- Applying authentication and authorization controls to administrative file operations where appropriate
Mitigation generally focuses on eliminating trust in client-supplied filesystem paths and enforcing a strict file access boundary.
Common defensive patterns include:
- Resolving and canonicalizing paths before access checks
- Allowing downloads only from a fixed server-side file identifier or allowlist
- Verifying that the resolved path remains within the intended directory
- Rejecting traversal syntax and encoded variants as an additional defense
- Restricting web-process filesystem permissions according to least privilege
- Keeping configuration secrets outside web-accessible or downloadable locations
- Applying authentication and authorization controls to administrative file operations where appropriate
How teams detect issues like this
Organizations can identify similar issues through:
- Static analysis rules for filesystem APIs receiving request parameters
- Code review checks for missing canonicalization and directory-boundary validation
- Dynamic testing of download endpoints with normalized and encoded path variations
- Web application firewall or reverse-proxy policies for suspicious traversal patterns
- Monitoring for unusual requests to file download handlers and access to sensitive paths
Automated security review tools can help flag direct use of request parameters in file operations.
Organizations can identify similar issues through:
- Static analysis rules for filesystem APIs receiving request parameters
- Code review checks for missing canonicalization and directory-boundary validation
- Dynamic testing of download endpoints with normalized and encoded path variations
- Web application firewall or reverse-proxy policies for suspicious traversal patterns
- Monitoring for unusual requests to file download handlers and access to sensitive paths
Automated security review tools can help flag direct use of request parameters in file operations.
